diff --git a/registry.txt b/registry.txt
index 28ee3890..7a2c4093 100644
--- a/registry.txt
+++ b/registry.txt
@@ -8454,3 +8454,4 @@ https://github.com/PervasiveDisplays/Pervasive_BWRY_Medium.git|Contributed|Perva
 https://github.com/localrice/EasyWiFi.git|Contributed|EasyWiFi
 https://github.com/7semi-solutions/7Semi_RS485_Temperature-Humidity-Arduino-Library.git|Contributed|7Semi-RS485-Temperature-Humidity-Probe-Arduino-Library
 https://github.com/vkumpan/SSD1306.git|Contributed|SSD1306
+https://github.com/7semi-solutions/7Semi_CO2_Temperature_Humidity_I2C_Probe_Arduino_Library.git|Contributed|7Semi_CO2TH